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根據百分率找數量（二）: 例1的副本
Author:
音节-Lisa
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
小数 的副本
四邉形 (四年級) 教師版
Earth with coastline
直角坐標平面上的旋轉變換
第八周作业
Discover Resources
軌跡觀察---心臟線
平面直角坐标系
Copy of Fill a special area
工具：PlaneText, PlaneArrow
变化的三角形的内心.许兴华数学
Discover Topics
Symmetry
Fractions
Arithmetic
Histogram
Hypothesis Testing